名词性从句的要点一、that可省略的情况：单个宾语从句中的that可省略that不可省略的情况：主语从句、表语从句、同位语从句、用it做形式宾语的宾语从句、并列的宾语从句中的后几个从句的引导词that不能省略实战：下列句子要不要that1.Idon’tthink_______sheiscoming.2.Itisapity_______hehasmadesuchamistake.3.Thereasonis_______heiscareless.4.Thenews_______ourteamwonthematchinspiredus.5.Ithinkitnecessary_____youshouldreadEnglishaloud.6.Hetoldme______hisfatherhaddiedand_____hehadtomakealivingalone.二、if和whether的选用不能使用if的情况:a.主语从句b.表语从句c.同位语从句d.介词后的宾语从句e.whethertodo做动词宾语不能用iftodo.（动词不定式前面）f.与ornot连在一起引导宾语从句时不用if.（whetherornot)实战：选填if还是whether1.Iaskedher__________shehadabike.2.________wewillholdapartyintheopenairtomorrowdependsontheweather.3.We’reworriedabout________heissafe.4.Idon’tknow___________heiswellornot.5.Idon’tknow________ornotheiswell.6.Thequestionis________heshoulddoit.7.Thedoctorcanhardlyanswerthequestion________theoldmanwillrecoversoon.8.Ihaven’tdecided_______togothere.三、that和what的选用that和what都可引导所有的名词性从句。但是，what除起连接作用外，还在名词性从句中充当成分，可作从句的主语、宾语、或表语。而that在名词性从句中不充当任何成分，只起连接作用。实战：选填that还是what1.______hewantsisabook.2.______hewantstogothereisobvious.3.Theresultis______wewonthegame.4.Thisis_____wewanttoknow.5.Is_____hetoldustrue?6.Weshouldpayattentionto______theteacherissaying.7.Ihavenodoubt_____hewillcome.8.Ihavenoidea____hedidthatafternoon.第1页共2页四、其它连接代词和副词的使用：主要根据名词性从句中的具体意义，正确的选择who,which,when,where,why,how等连接词，这些连接词既具有疑问含义，又起连接作用，同时在从句中充当各种成分。五、宾语从句的时态呼应问题：1.如果主句时态是现在时或将来时,从句谓语可根据句意需要而选用任一种时态。Hebelieveshisdreamwillcometruesomeday.Pleasetellmewhatyouweredoingatthistimeyesterday.2.如果主句谓语是过去时,从句谓语动词一般用过去的某种时态,但从句表达的是客观事实、真理、自然规律等时,从句谓语通常用一般现在时。HetoldmehewaspreparingfortheexaminationTheteachertolduslighttravelsinastraightline六、名词性从句的语序：(1)名词性从句构成有两种a.That+陈述句Thatlighttravelsinstraightlinesisknowntoall.b.疑问词+句子的剩余成分Thisiswhatwearelookingfor.(2)疑问词引导的名词性从句要求使用陈述句语序，不能用一般疑问句语序实战：如下那句话是正确的名词性从句Howwashesuccessfulisstillapuzzle.()Howhewassuccessfulisstillapuzzle.()Couldyoutellmewherehelives?()Couldyoutellmewheredoeshelive?()第2页共2页
